GESTATION 



977 



RABBIT N0.80 



■e-e- 



15 

 AFTE R 



21 



3:^ 



J3 



MATING 



9 12 



DAYS 



Fig. 16.15. Concentration of relaxin in the blood of a pregnant rabbit castrated the 14th 

 day of gestation and maintained with 4 nig. progesterone daily until the 32nd day. Post- 

 mortem examination revealed 8 placentas and 2 dead fetuses. (From M. X. Zarrow and B. 

 Rosenberg, Endocrinology, 53, 593, 1953.) 



TABLE 16.5 



Relaxin content of the blood serum and tissue of the reproductive tract of the rabbit 



(From M. X. Zarrow and B. Rosenberg, Endocrinology, 53, 593, 1953.) 



